xAI’s Colossus supercomputer cluster uses 100,000 Nvidia Hopper GPUs — and it was all made possible using Nvidia’s Spectrum-X Ethernet networking platform

• Nvidia and xAI collaborate on Colossus development
• xAI has markedly cut down ‘flow collisions’ during AI model training
• Spectrum-X has been crucial in training the Grok AI model family

Nvidia has shed light on how xAI’s ‘Colossus’…